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On April 6, 2011, following a lawsuit involving the Yu-Gi-Oh! franchise, 4Kids Entertainment, which programmed the CW4Kids/Toonzai block for the network, filed for Chapter 11 bankruptcy protection.[6] On May 1, 2012, Kidsco Media Ventures, an affiliate of Saban Capital Group, placed a bid to acquire some of 4Kids' assets. On June 26, 2012, after competition from 4K Acquisition Corp, a subsidiary of Konami, the deal was finalized, with 4K Acquisition receiving the U.S. rights to the Yu-Gi-Oh! franchise and Saban receiving all other assets, including the programming rights to The CW's Saturday morning block.[7] On July 2, 2012, it was announced that Saban Brands, via Kidsco Media Ventures, would begin programming the block that fall.[8][9][10][11] On July 12, 2012, it was announced that the block would be named Vortexx, which launched on August 25, 2012.[1][2]

On May 31, 2014, The CW announced that Vortexx would be discontinued and replaced on October 4, 2014 by One Magnificent Morning, a block produced by Litton Entertainment that would feature live-action documentary and lifestyle programs aimed at pre-teens and teenagers, similarly to a block also introduced by Litton for CW co-owner CBS the previous year. The move came as part of a shift by broadcast television networks towards using their Saturday morning lineup solely to comply with the educational programming requirements mandated by the Federal Communications Commission (FCC), along with the cultural shift towards cable and online video on demand viewing of children's and animated programming.[12] Vortexx aired for the final time on September 27, 2014;[4] it was the last Saturday morning block across the major American broadcast television networks that primarily featured non-educational programming aimed at children.[4][5] The KidsClick block from Sinclair Broadcast Group launched on both Sinclair stations and This TV on July 1, 2017, but has no association with a traditional broadcast network otherwise.

Officially the network preferred the block to air from 7:00 a.m. to Noon in each time zone, though there were local scheduling variances in some areas that may have moved it to different hours, to Sundays, or split the lineup between Saturday or Sunday, along with local pre-emptions of select shows. CW Plus stations in the Central, Mountain and Alaska time zones time zones also aired the block one hour earlier or later, depending on the local time zone, as The CW Plus operates separate feeds based on the network's Eastern and Pacific time zone scheduling for primetime shows. San Antonio CW affiliate KMYS split the Vortexx block over two days, between early Sunday and early Monday mornings before 5:00 a.m., due to an existing arrangement to air Fox's Weekend Marketplacepaid programming block in lieu of sister station KABB.

WTVW in Evansville, Indiana (which hurriedly joined The CW on January 31, 2013 due to the market's former affiliategoing dark) was unable to schedule the block when it initially began its affiliation with the network, due to contractual obligations to paid programming slots and existing syndicated E/I programming on Saturday mornings through March 2013. The station began carrying Vortexx in its network-recommended timeslot on April 6, 2013, with the station's acquired E/I programming moving to Sunday afternoons.[13][14]

On April 29, 2013, Saban Brands announced a separate partnership with Kabillion to add programming from the Vortexx block to the existing Kabillion video on demand service for cable providers. The programs were listed on the service without any separate Vortexx subdivision under their individual show titles, with Vortexx promotional advertising.[15] The shows currently remain on Kabillion with other advertising, even with the discontinuance of Vortexx.

Vortexx only ran an hour of programming that met the FCC's educational programming guidelines; as a result, The CW's affiliates handled the responsibility of filling the remaining two hours; The CW Plus cable-subchannel affiliates had E/I-compliant programs acquired from the syndication market built into the national schedule, alleviating stations carrying CW network programming via that feed from the responsibility of purchasing the local rights to such programs.